COMPUTER SYSTEM ORGANISATION

Number System: Binary, Octal, Decimal, Hexadecimal and conversion between two different number systems. Integer, Floating Point, 2�s complement of number from base-2;

Internal Storage encoding of Characters: ASCII, ISCII (Indian scripts Standard Code for Information Interchange), UNICODE;

Microprocessor: Basic concepts, Clock speed (MHz, GHz), 16 bit, 32 bit, 64 bit processors; Types � CISC, RISC; Concept of System Buses, Address bus, Data bus.

Concepts of Accumulator, Instruction Register, and Program Counter;

Commonly used CPUs and CPU related terminologies: Intel Pentium Series, Intel Celeron, Cyrix, AMD Series, Xeon, Intel Mobile, Mac Series; CPU Cache;
Concept of heat sink and CPU fan, Motherboard; Single, Dual and Multiple
processors;

Types of Memory: Cache (L1,L2), Buffer, RAM (DRAM, SDRAM, RDRAM, DDRAM), ROM (PROM, EPROM), Access Time;

Input Output Ports/Connections: Power connector, Monitor Socket, Serial (COM)and Parallel (LPT) port, Universal Serial Bus port, PS-2 port, SCSI port, PCI/MCIsocket, Keyboard socket, Infrared port (IR), audio/speaker socket, Mic socket; data Bus; external storage devices connected using I/O ports;

Power Supply: Switched Mode Power Supply (SMPS): Elementary Concept of
Power Supply: Voltage, Current, Power (Volt, Ampere, Watt), SMPS supplies �
Mother Board, Hard Disk Drive, Floppy Disk Drive, CD/DVD Drive;

Power Conditioning Devices: Voltage Stabilizer, Constant Voltage Transformer (CVT), Uninterrupted Power Supply (UPS)-Online and offline.